Blind space-time joint channel and direction of arrival estimation for DS-CDMA systems

被引：2
|
作者：
de Lamare, R. C. [1 ]
Sampaio-Neto, R. [2 ]
机构：
[1] Univ York, Dept Elect, Commun Res Grp, York Y010 5DD, N Yorkshire, England
[2] Pontif Catholic Univ Rio de Janeiro, CETUC, BR-22453900 Rio De Janeiro, Brazil
来源：
IET SIGNAL PROCESSING | 2011年 / 5卷 / 01期
关键词：
MULTIUSER DETECTION; INTERFERENCE SUPPRESSION; PARAMETER-ESTIMATION; DOA ESTIMATION; ALGORITHMS;
D O I：
10.1049/iet-spr.2008.0105
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A blind space-time joint channel and direction of arrival (DoA) estimation method is proposed for DS-CDMA systems. The new method employs a linear antenna array and requires only the signature sequence and timing of the desired user to blindly estimate the channel and the DoA parameters. Two blind algorithms that exploit antenna arrays are also proposed for enhancing the channel estimates. Simulations show the improvements for channel estimation of the method and algorithms over existing techniques and the accuracy achieved for DoA computation as compared to recently reported DoA estimators for DS-CDMA systems.
引用
收藏
页码：33 / 39
页数：7
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